On Deformations of Threedimensional Rational Manifolds.
On degenerate secant varieties of secant defect two.
On degrees in multihomogeneous ideal theory.
On del Pezzo fibrations
On Deligne-Malgrange lattices, resolution of turning points and harmonic bundles
In this short survey, we would like to overview the recent development of the study on Deligne-Malgrange lattices and resolution of turning points for algebraic meromorphic flat bundles. We also explain their relation with wild harmonic bundles. The author hopes that it would be helpful for access to his work on wild harmonic bundles.
On desingularized Horrocks-Mumford quintics.
On determinantal ideals which are set-theoretic complete intersections
On diagonal cubic surfaces.
On dihedral algebraic function fields
On Dimension Theorems of the Varieties of Special Divisors on a Curve.
On direct and inverse images of D-Modules in prime characteristic.
On Donaldson polynomials of rational ruled surfaces.
On Drinfeld's universal formal group over the p-adic upper half plane.
On elementary equivalence, isomorphism and isogeny
Motivated by recent work of Florian Pop, we study the connections between three notions of equivalence of function fields: isomorphism, elementary equivalence, and the condition that each of a pair of fields can be embedded in the other, which we call isogeny. Some of our results are purely geometric: we give an isogeny classification of Severi-Brauer varieties and quadric surfaces. These results are applied to deduce new instances of “elementary equivalence implies isomorphism”: for all genus zero...
On elementary transformations of ruled surfaces.
On Elliptic Surfaces in Characteristic p.
On Enriques Surfaces in Characteristic p. I.
On Enriques Surfaces in Characteristic p. II.
On Equations Defining Arithmetically Cohen-Macaulay Schemes. I.
On equimultiple subschemes of a local scheme over a field of characteristic zero